For the metric (REF ),
it is instructive to consider the
stress-energy tensor of the dual CFT on the time-dependent boundary, as
determined via holographic renormalization [1]}.
We obtain the energy density and pressure
\(\rho &=& -{\left< {T_{~\tau }^{\tau }} \right>} \hspace{5.0pt}=\hspace{1.99997pt}\frac{3}{64\pi G_5}\frac{4\mu a^4+\dot{a}^4}{a^8}\\P &=& {\left< {T_{~x}^{x}} \right>} \hspace{5.0pt}=\hspace{1.99997pt}\frac{1}{64\pi G_5}\frac{4\mu a^4+5\dot{a}^4-4a\dot{a}^2\ddot{a}}{a^8}.\) 
